hisilicon-ev200 / goke-gk7205v200: IMX335 boost-1944p latency framing#2091
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Rewrites the boost preset's INI header to describe what the mode is actually for: glass-to-glass latency, not wire fps. The encoder caps at ~21 fps for full-5M h.264 4 Mbps regardless of video0.size, so the wire-fps number alone makes this preset look pointless next to stock 5M. The real win is ~16 ms shorter glass-to-glass latency (sensor readout 25 ms vs 33 ms, plus encoder picks from a 40 fps stream instead of 30 fps). That 16 ms claim is analytical, not measured. Adds a link to the methodology spec for verifying it: openhisilicon/docs/sensor-pipeline-latency-metering.md (in flight at OpenIPC/openhisilicon#103). Also expands the header with the three-line enable recipe (sensorConfig + video0.size + video0.fps) so users don't try to downscale to 1920x1080 and get a 4:3-cropped image. No INI register changes, no functional change. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Rewrites the IMX335 boost-1944p INI header comment to describe what the mode is actually for.
The encoder caps wire-rate at ~21 fps for full-5M h.264 4 Mbps regardless of
video0.size, so the wire-fps number alone makes this preset look pointless next to stock 5M. The real benefit is glass-to-glass latency:That 16 ms claim is analytical, not measured. Adds a link from the INI header to the new methodology spec for verifying it (in flight at OpenIPC/openhisilicon#103) so the next person can run actual numbers.
Also expands the header with the three-line enable recipe (
sensorConfig+video0.size=2592x1944+video0.fps=45) so users don't accidentally downscale to 1920×1080 and get a 4:3-cropped image.Companion to OpenIPC/openhisilicon#103. Independent of it — INI just adds a comment-only link.
No register/INI value changes. Header text only.
Test plan
/etc/sensors/high-fps/imx335_2592x1944_45fps.inion both ev200 and gk7205v200 firmware images (no install-rule changes; pure file edit);-comment-only; no register/section edits)🤖 Generated with Claude Code